Do you agree or disagree with the following statement? The best way to travel is in a group led by a tour guide. Use specific reasons and examples to support your answer.

The reading and the lecture are both about causes of the dinosaur's disappearance. Whereas, the author of the reading presents three theories about the extinction of dinosaur. The lecturer casts doubt on the main points made in the reading by providing three reasons. First of all, the author suggests that extinction might have been caused by striking by asteroid. Additionally, he claims that Iridium element is rare on earth and mostly found on the celestial bodies, and scholars found that on earth surface. The lecturer, however, disputes this claim. He mentions that iridium also found on the earth interior part, which may have been come out due to the eruption of the volcano. Furthermore, he points out that there is sufficient amount of iridium on the earth's magma, and they came out due to volcanic activities. Secondly, the author believes that they may have been disappeared due to too much coldness. Also, he argues that the glacial period started during the disappearance of the dinosaur. He explains that dinosaurs were not had strong thermoregulatory system. Nevertheless, the speaker refutes this argument. He elaborates on this by raising the point that there is not any evidence of glacial records. In addition, the points that there was evidence of rising sea level it means there is not any cold period. Polar ice had melted down and the sea level raised. Finally, the writer feels that modern birds have evolved from dinosaur. Moreover, he posits that research shows that their structures and anatomical features resemble. On the other hand the lecturer asserts that their features do not match. He notes that birds can fly long distances and can change direction quickly, in contrast, dinosaurs could not move fast. In conclusion, both writer and speaker hold conflicting views about the disappearance of dinosaur. It's crystal clear that they will have trouble finding common ground on this issue of extinction of dinosaurs.
Submitted by Hari Prasad Adhikari on
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